Loose-leaf binder



J. C. DAWSON LOOSE LEAF BINDER Oct. 20, 1925.

Filed March 21, 1924 '229/' 'i' lnafentor.-

el 2f) l UNI T JAMES CVDAWSON, OF VEBSTER.GRO Ie'IS-SOURI, ASSIGNOR ,TO ELMA N. DAVISON,

QFiWEBSTER GROVES, EIESGURI,

Locsnrnar Binnen.

Application filed March 21, 19,24. ASerial No. 700,812.

To Zlio/toni t mayy concern Be it known that I, Jamas C. Dawson, a

citizen of the United States, and resident of Vebster Groves, county of St. Louis, and State of Missouri, have invented certain new and useful Improvements in LooseeLeaf Binders, of which the following is a specification, and which are illustrated in 'the accompanying drawings, forming a part thereof.

This invention relates to loose leaf binders and has for its principal object to reduce the cost of production by simplifying the structure, facilitating the manufacturing operations and saving material, all without sacrificing serviceability of the product. Further objects and adifantages of 'the invention will become apparent as the disclosure proceeds and the description is read in connection with the accompanying drawing, in which*` Fig. 1 is a perspective view illustrating a loose leaf binder embodying the invention;

Fig. 2 is a plan View of a blank from which base portions of the leaf retaining devices are formed;

Fig. 3 is a perspective view of a hooked rock shaft forming a part of the leaf-retaining devices, and

Figs. 4t and 5 are fragmentary sectional views taken on the lines wel and of Fig. 1 respectively.

The binder may comprise a pair of covers and 11 suitably hinged to a back 12, upon which is secured, by means of rivets 13, the leaf-retaining devices forming the subject matter of this invention.

These devices preferably include two base elements 14 and 15 cooperating with a rock shaft 16 having hooks 17 at its ends,

rlhe base members are preferably formed from a blank illustrated in Fig. 2 by bending the side edges along the lines 18 and 19 to form flanges 2O and 21 projecting downwardly from a generally flat top 22; and by bending the end portions, first on the lines 23 and 211, to form downwardly extending end flanges 25 and 26 and then on the lines 2T and 2S to form the tabs 29 and 30 for receiving the rivets 13.

The flanges are spaced from the edge 31 of the end flanges 26 by an amount approximately equal to the diameter of the rock shaft 16 which is mounted in that space.

The flanges 20 and the :adjacent portion of the top iare notched at 32 to receive the hooks 17 adjacent to the Vpoint where they join the rock shaft 16. The flanges and the adjacent portions of the top 22 are notched, as indicated at 33, to receive the free ends of the hooks which are equipped with catches 34 for cooperation with the top to hold the hooks in fastening position. The flanges 20 and the edges 31 of the end flanges 26 form' the bearings for the rock shaft 16 and when the parts are assembled, as illustrated in F ig. 1, this is ample. For convenience in holding the base elements and rock shaft together before they are riveted to the back, the flanges 2O may be folded under the rounded surface of the shaft, as

shown particularly at 35 in Fig. 4. If dei sired a depression 3G may be formed in the top 22 opposite to the flange 20, As shown, this is accomplished by the use of a somewhat triangular tool that severs the metal along the line 37 and provides a substantially straight edge 38, aligning with the edge 31 and cooperating with it to form a side bearing opposite to the flange 20.

IVith this construction the base elements will be held against separation from the rock shaft, and the edges of the notches 32 cooperating with the hooks 17 will prevent any relative longitudinal movement along the rock shaft, consequently the leaf-retaining devices may be conveniently handled prior to riveting them to the back.

I claim as my invention:

1. In a temporary binder, a sheet metal base, including a generally flat top, and flanges extending downwardly from the sides thereof, one of the flanges and the adjacent portion of the top being notched, a tab at one end of the base including a downwardly extending portion spaced at one edge from the notched flange, a rock-shaft journaled between the edge and flange and a hook on the shaft projecting through said notch and having a catch to engage the base.

2. In a temporary binder, a sheet metal base, including a generally flat top, and flanges extending downwardly from the sides thereof, one of the flanges and the adjacent portion of the top being notched, a tab at one end of the base including a downwardly extending portion spaced at one edge from the notched flange, a rock-shaft journaled between the edge and flange and a hook on the shaft projecting through said notch and having a catch to eligage the base, a portion of' the flange being turned under the shaft, and means for forming a bearing` for the shaft in alignment with the edge of the tab.

3. In a temporary binder, a sheet nietal hase, including' a generally 'flat top, and flanges extending` downwardly 'from the sides thereof, one of the flanges and the adl jacent portion of the top being notched, a tab at one end of the base including a downwardly extending portion spaced at one edge from the notched flange7 av rock shat't jonrnaled between the edge and flange and a hook on the shaft projecting through Said notch and having)` a catch to engage the base, a portion of the flange being turned under the shaft, and a depression in the top of the base presenting a bearingl in alignment with the edge of the tab.

JAMES C. DAlV-SON. 

